[2.2] Aurelion Sol Guide - Main ASol? Need to support? DW!

First item:

• Ruby Crystal : obvious choice as a support as you need high sustain against both duo lane enemies. You could opt for Cloth Armor against Pantheon support and other AD supports, but that wouldn't help towards Rylai's Crystal Scepter which is very important to you.

First recall:

• Giant's Belt : grants you hp. You'll need health sustain because you must avoid taking honey fruits as you want to leave them to your ADC. (They usually have sweet tooth and they have to avoid recalling to stay in lane longer for gold income.) Always remember to prioritise recalling as a support as you don't lose much unless your ADC is low or they need decent babysitting.
• Boots of Speed : as Aurelion Sol you need a lot of speed to control the battle.
• If you have spare gold keep itemising towards Rylai's Crystal Scepter .

First item:

• Rylai's Crystal Scepter : your first and only power spike as a support. Once you have Rylai's you can infinitely proc Font of Life (if you have it) and Weakness. GG! Not much to explain about it. Just try to teamfight and touch as many people as possible with your stars. Escaping from your grasp is almost impossible and chasing your carry is hard as well due to the infinite slow, on-demand Starsurge , and Voice Of Light  if anything becomes dire.

Center of Universe:

• Dead Man's Plate : gives you an absurd abusable amount of Movement Speed. You never have to AA to so you can constantly have +50MS and +5%MS. This allows you to stay on top of enemies at all times increasing your power in teamfights. The armor and HP boost gives you a considerable amount of protection as you might become a prime target many times due to the tilt you cause to the enemy, or due to you being also immobile if jumped on as you have no Ghost or Flash. PS: you only have to AA in order to proc Kleptomancy if you have it.
• Boots of Swiftness : grant the biggest speed, on the most important stats for Aurelion Sol .
• Abyssal Mask : your magic resistance item. Increases your damage and your mage's damage while giving much needed stats for Aurelion Sol . Don't swap for Force of Nature as this would leave you lacking in mana.
• Liandry's Torment : due to you having a lot of CC and being ranged you don't need much protection so you can always build more damage and utility. Lyndrai's will give a terrific 2% max HP burning effect on enemies while increasing your AP and most importantly your HP.
• Morellonomicon : grants more utility with the constant Grievous Wounds being applied to your enemies. Also grants AP and the much important HP. The flat magic penetration is decent as it gives you a 7-11% increase to your flat damage output, but you don't need a lot of penetration as you don't deal much flat magic damage anyways. You can absolutely finish people, but your main objective is silver spooning victims to your team.

PS: Morellonomicon  will give you 7% increase on tanks, 9% increase on bruisers,11% increase on squishies.

Immortal God:

• Abyssal Mask : your only magic resistance item, as you usually don't need more than one.  Increases your damage and your mage's damage while giving much needed stats for Aurelion Sol . You buy this before armor items as in this case you profit more from the available spammability of your spells. We only bought Dead Man's Plate earlier before because of its mobility, not mainly for the armor.
  
• [mercury treads]: you'll become a central point for tanking so you need tenacity to be available to use CC and maneuver your stars.
• Frozen Heart : a good item for your first armor. Decreases AS of your enemies and also gives more CD reduction for more spamming.
• Thornmail : capitalizes on [frost heart], as it benefits from a high armor stat. Also makes you incredibly tanky and provides a decent amount of Grievous Wounds to the teamfight. Also incentives you to become a central tanking point.
• Warmog's Armor : gives an incredible boost to your health which boosts your healing by the Font of Life. Also allows you to linger around the battlefield and be always available for your team.

Flex Items:

• Ardent Censer : only viable with Font of Life. If an ally attacks an enemy slowed by your stars they proc this item's passive. The passive doesn't have a cooldown so it can be procced infinitely. Can replace Abyssal Mask if enemy has no notable AP or [warmog's heart] if you have a very high AS attack speed ADC like Jinx in your team.
• Winter's Approach : only viable by swapping out Abyssal Mask in Center of Universe build if the enemy has no notable AP.